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Finding the Third Proportional to 12,158,936 and 18,974,532

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Solution

The third proportional to 12,158,936 and 18,974,532 is: 29,610,556.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158,936 : 18,974,532 = 18,974,532 : x
  2. Step 2: Convert to fraction form
    12,158,936/18,974,532 = 18,974,532/x
  3. Step 3: Cross multiply
    12,158,936x = 18,974,532 × 18,974,532
  4. Step 4: Simplify right side
    12,158,936x = 360,032,864,619,024
  5. Step 5: Solve for x
    x = 360,032,864,619,024/12,158,936
  6. Step 6: Final answer
    x = 29,610,556.76

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.